campaing contributions

As Senators Barack Obama and John McCain head out on the fundraising trail as their parties presumptive nominees for President, the Washington Post wonders how the two, who have each exerted considerable effort to frame themselves as reformers out to change the way campaigns are financed, go about navigating the big money game in their race for the White House.

One way to shore up the change-agent image would be to endorse full public financing of elections for all federal campaigns -- something Obama has done, but McCain has not. What else are they doing?